JPS6275926A - Slider for magnetic head - Google Patents
Slider for magnetic headInfo
- Publication number
- JPS6275926A JPS6275926A JP21236085A JP21236085A JPS6275926A JP S6275926 A JPS6275926 A JP S6275926A JP 21236085 A JP21236085 A JP 21236085A JP 21236085 A JP21236085 A JP 21236085A JP S6275926 A JPS6275926 A JP S6275926A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- negative pressure
- magnetic head
- magnetic
- recording medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、フレキシブルディスク装置に用いて、好適な
磁気ヘッド用スライダに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a slider for a magnetic head suitable for use in a flexible disk device.
従来、フロッピディスク装置に用いられる磁気ヘッドは
、第１図に示すようなフラットなスライダレール１の中
央部に磁気へラドコア２を有するＩｌ造をしている。記
録再生動作中は、この磁気ヘッドは磁気記録媒体３と常
に接触した状態で記録再生を行うように設計されている
。しかし、実際には動圧軸受の原理に従って、周速１〜
２ ｍ ／ ｓ程度でスペーシングが０．１〜０．１５
μｍ程度になっている。2. Description of the Related Art Conventionally, a magnetic head used in a floppy disk device has an Il structure in which a magnetic heald core 2 is located in the center of a flat slider rail 1 as shown in FIG. During recording and reproducing operations, this magnetic head is designed to perform recording and reproducing while always being in contact with the magnetic recording medium 3. However, in reality, according to the principle of hydrodynamic bearings, the circumferential speed is 1~
Spacing is 0.1-0.15 at about 2 m/s
It is on the order of μm.
しかし、記録密度が高くなるにつれて、記録再生特性に
及ぼすスペーシングの影響は大きくなり垂直フロッピー
ディスク装置のような超高密度型フロッピーディスク装
置においては、記録再生動作時のスペーシングが常に０
．５ ミクロン以下になるようにする必要がある。However, as the recording density increases, the effect of spacing on the recording and reproducing characteristics becomes greater.In ultra-high-density floppy disk devices such as vertical floppy disk devices, the spacing during recording and reproducing operations is always 0.
．． It must be 5 microns or less.
上記のような実効スペーシングが０．５ ミクロン以
下の安定接触動作を行うために、従来はスライダレール
に負圧部を設けた、いわゆる負圧スライダが用いられて
きた。参照：特開昭６０−２２７８２号。In order to perform the above-mentioned stable contact operation with an effective spacing of 0.5 microns or less, a so-called negative pressure slider in which a negative pressure section is provided in the slider rail has been used. Reference: JP-A No. 60-22782.
特開昭６０−３２１７４号）。しかし、この負圧スライ
ダは、スライダレール部に負圧部を設けた構造になって
いるために、磁気記録媒体との接触走行中に負圧部に塵
埃などが溜まり易い。そのためにスライダレール部に発
生する圧力分布が変化し、安定接触動作を確保すること
が非常に困難となる。JP-A No. 60-32174). However, since this negative pressure slider has a structure in which a negative pressure section is provided in the slider rail section, dust and the like tend to accumulate in the negative pressure section during running in contact with a magnetic recording medium. Therefore, the pressure distribution generated in the slider rail portion changes, making it extremely difficult to ensure stable contact operation.
また、負圧部に塵埃が溜まることにより、スライダと磁
気記録媒体間で凝着摩耗が発生し、磁気記録媒体が損傷
し、記録情報が損オ）れる、いわゆるヘッドクラッシュ
現象が起こることがある。In addition, the accumulation of dust in the negative pressure section may cause adhesive wear between the slider and the magnetic recording medium, damaging the magnetic recording medium and causing loss of recorded information, a so-called head crash phenomenon. .
本発明の目的は、安定接触動作を実現し、かつヘッドク
ラッシュの問題を軽減するような磁気ヘッド用スライダ
詮提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a slider for a magnetic head that realizes stable contact operation and reduces the problem of head crashes.
本発明の磁気へラドスライダは、小さな押し付は荷重で
、サブミクロン以下の非常に狭小なスペーシングを安定
に得るためにスライダレールの間に負圧部を設けている
。従来の負圧スライダはスライダレール面に負圧部を設
けているため、負圧部が直接、磁気記録媒体と接触する
機会が多い。The magnetic herad slider of the present invention is provided with a negative pressure section between the slider rails in order to stably obtain a very narrow spacing of submicron or less with a small pressing load. Since a conventional negative pressure slider has a negative pressure section on the slider rail surface, there are many opportunities for the negative pressure section to come into direct contact with the magnetic recording medium.
そのために動作中に起こる負圧部の摩耗あるいは塵埃の
付着などにより負圧部の形状及び大きさが変化する。そ
の結果、スライダと磁気記録媒体の間での圧力分布が変
化するために、長時間にわたって安定接触動作を実現す
ることは非常に困難であった。Therefore, the shape and size of the negative pressure section change due to wear of the negative pressure section or adhesion of dust during operation. As a result, the pressure distribution between the slider and the magnetic recording medium changes, making it extremely difficult to achieve stable contact operation over a long period of time.
また、動作中に負圧部に塵埃が溜まることにより、スラ
イダと磁気記録媒体の間で凝着摩耗が起こり、磁気記録
媒体が損傷する危険性が大いにあった。Further, as dust accumulates in the negative pressure section during operation, adhesive wear occurs between the slider and the magnetic recording medium, and there is a great risk that the magnetic recording medium will be damaged.
本発明の磁気へラドスライダは、記録動作中に、直接、
磁気記録媒体と接触することがないようにスライダレー
ルの間に負圧部を設けることにより、上記の問題を解決
している。The magnetic herad slider of the present invention directly, during recording operation,
The above problem is solved by providing a negative pressure section between the slider rails so that they do not come into contact with the magnetic recording medium.
以下、実施例にて本発明の詳細な説明する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
第２図に本発明の一実施例を示す。スライダレール１は
Ｍ ｎ Ｚ ｎフェライトなどの磁性材、もしくは、チ
タン酸バリウム、フオトセラム、ＺｒＯｘ、アルミナな
どの非磁性材からなる。図に示すように負圧を発生させ
るためにスライダレール１間に巾２ｍｍ長さ５ｍ、テー
パ角０．０５７度のテーパ部４をスライダ長手方向全長
にわたって設ける。なお空気の流入方向は矢印５の方向
である。FIG. 2 shows an embodiment of the present invention. The slider rail 1 is made of a magnetic material such as MnZn ferrite, or a non-magnetic material such as barium titanate, photoceram, ZrOx, alumina, etc. As shown in the figure, in order to generate negative pressure, a tapered part 4 having a width of 2 mm, a length of 5 m, and a taper angle of 0.057 degrees is provided between the slider rails 1 over the entire length of the slider in the longitudinal direction. Note that the direction of air inflow is the direction of arrow 5.
比較例として、従来のフレキシブルディスク装置用の磁
気ヘッドを用いる。スライダレール間に負圧を発生させ
るためのテーパ部を設けていない以外はスライダ各部の
形状及び大きさは上記負圧スライダと全く同じである。As a comparative example, a conventional magnetic head for a flexible disk device is used. The shape and size of each part of the slider is exactly the same as the negative pressure slider described above, except that a tapered part for generating negative pressure between the slider rails is not provided.
上記２種類のスライダについて浮動特性を計算したとこ
ろ第３のようになった。図において縦軸に示したスライ
ダ押し付は荷重は、スライダを押え付ける方向を正とし
ている。すなわち、負圧が発生する場合は、スライダの
押し付は荷重の符号は負となる。図から明らかなように
、本発明のスライダでは周速１ｍ／ｓでも負圧が発生し
ていることがわかる。When we calculated the floating characteristics of the above two types of sliders, we found the third one. In the slider pressing shown on the vertical axis in the figure, the load is positive in the direction in which the slider is pressed. That is, when negative pressure is generated, the sign of the load when the slider is pressed is negative. As is clear from the figure, negative pressure is generated in the slider of the present invention even at a circumferential speed of 1 m/s.
本実施例に示したように、スライダレール間に負圧発生
のためのテーパ部を設けることにより、低荷重で安定に
サブミクロン以下の狭スペーシングを実現することがで
きた。As shown in this embodiment, by providing a tapered portion for generating negative pressure between the slider rails, it was possible to stably achieve a narrow spacing of submicron or less with a low load.
以上説明したように、本発明によれば、安定接触動作を
実現し、かつヘッドクラッシュの問題を軽減することが
できる。As described above, according to the present invention, stable contact operation can be realized and the problem of head crash can be alleviated.
第１図は、従来のフレキシブルディスク装置用磁気へラ
ドスライダを示す図、第２図は、本発明によるフレキシ
ブルディスク装置用磁気ヘッド用スライダを示す図、第
３図は、従来型スライダと本発明によるスライダの浮動
特性を比較した図である。
１・・・スライダレール、２・・・磁気ヘッドコア、３
・・・磁気記録媒体、４・・・負圧発生用テーパ部、５
・・・空ゝ・−一FIG. 1 is a diagram showing a conventional magnetic head slider for a flexible disk device, FIG. 2 is a diagram showing a magnetic head slider for a flexible disk device according to the present invention, and FIG. 3 is a diagram showing a conventional slider and a magnetic head slider according to the present invention. FIG. 3 is a diagram comparing the floating characteristics of sliders. 1...Slider rail, 2...Magnetic head core, 3
...Magnetic recording medium, 4...Tapered part for generating negative pressure, 5
...Sky ゝ・-1
Claims (1)
ディスク用磁気ヘッド用スライダにおいて、スライダ長
手方向全長にわたり、スライダレールの間に負圧を発生
するテーパ部を設けることにより、動作中における浮上
力の発生を防ぎ、前記磁気記録媒体との安定接触を維持
することを特徴とする磁気ヘット用スライダ。In a slider for a magnetic head for a flexible disk that can operate while in contact with a magnetic recording medium, by providing a tapered part that generates negative pressure between the slider rails over the entire length of the slider, a flying force can be generated during operation. 1. A slider for a magnetic head, characterized in that the slider maintains stable contact with the magnetic recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21236085A JPS6275926A (en) | 1985-09-27 | 1985-09-27 | Slider for magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21236085A JPS6275926A (en) | 1985-09-27 | 1985-09-27 | Slider for magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6275926A true JPS6275926A (en) | 1987-04-07 |
Family
ID=16621256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21236085A Pending JPS6275926A (en) | 1985-09-27 | 1985-09-27 | Slider for magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6275926A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222418A (en) * | 1986-03-24 | 1987-09-30 | Canon Electronics Inc | Magnetic head |
| US5334434A (en) * | 1991-02-15 | 1994-08-02 | Matsushita Electric Industrial Co., Ltd. | Vibration or shock absorbing member |
-
1985
- 1985-09-27 JP JP21236085A patent/JPS6275926A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222418A (en) * | 1986-03-24 | 1987-09-30 | Canon Electronics Inc | Magnetic head |
| US5334434A (en) * | 1991-02-15 | 1994-08-02 | Matsushita Electric Industrial Co., Ltd. | Vibration or shock absorbing member |
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